/**
 * Copyright (C) 2024 Huawei Device Co., Ltd.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE
 */

import { buffer } from "@ohos/node-polyfill"

export default function xor(a, b) {
    if (!buffer.Buffer.isBuffer(a)) {
        a = new buffer.Buffer(a)
    }
    if (!buffer.Buffer.isBuffer(b)) {
        b = new buffer.Buffer(b)
    }
    var res = []
    if (a.length > b.length) {
        for (var i = 0; i < b.length; i++) {
            res.push(a[i] ^ b[i])
        }
    } else {

        for (var i = 0; i < a.length; i++) {
            res.push(a[i] ^ b[i])
        }
    }

    return new buffer.Buffer(res);
}
